Machine for making corner-bead, &amp;c.



N, E. CLARK. MACHINE FOR MAKING CORNER BEAD, 6w.

APPLICATION FILED OUT. 29, 1913. 1,129,454.

Patented Feb. 23, 1915.

7 SHBETS SHEET 1.

Ill

IN VE N T 0/? [marge/aw];

N. E. CLARK. MACHINE FOR MAKING QORNER BEAD, 6w. APPLICATION PZMLJ 001". 29, 1913.

1,129,454. Patented Feb. 23, 1915.

7 SHEETS-SHEET 2.

MIA/E8858 N. B. CLARK. MAGHiNE FOR MAKING comma BBAD APPLICATION FILED OUT. 29, 1913.

Patented Feb. 23, 1915.

7 SHEEN-SHEET 3.

INVENTOR N. E. CLARK. MACHINE FOR MAKING CORNER BBAD, 6:0.

APPLIOATION FILED 007.. 29, 1913. 1,129,454.

Patented Feb. 23, 1915.

7 BHBETS SHBBT 4.

N. E. CLARK.

MACHINE YOK MAKING CORNER BEAD, sic.

APPLICATION FILED 00129 1913.

1,1 29,454; Patented Feb. 23, 1915.

7 EHEBTHHEBT 8.

. f A 1 K mmssm. no 1m 1m mvmron N. E CLARK.

Mass-um; 10R MAKENG CORNER HEAD, 5w.

m AliLICAIlGZ? TILED 0ST: 193.3. 1,129,454.

I SKIRTS-SHEET 7.

\ [IV VEN TOR Nata-21 Elnzm elark Patented Feb. 23, 1915.

NORRIS ELMORE CLARK. 0F PLAINV MACHINE FOR MAKING (3933353 534:

Application filed October 29, 1913.

strips of metal without the necessity of handling, all the operations of feeding, punching and formin being automatic.

The specific 0 ject is to automatically cut arms from the sides of a stri and fold the strip and arms into angular orm.

Another object is to insure accurate feeding and forming.

Another object isto insure the article being straight as it comes from the machine. Another object is to automatically attach lateral reinforcing wires.

The machine herein disclosed is designed particularly for the carrying out of the steps of operation disclosed in my application Serial No. 698,078, filed May 17 1912.

In carrying out these objects a strip of metal from which the main body and arms of the article are formed is intermittently fed into the machine by suitable rolls not shown. Other rolls are provided for 'feeding the product out of the machine and these latter rolls serve to assist in attaching the side wires. The lower forming dies are carried by a stationary bed and the cooperating upper dies are carried by a reciprocating head in a manner common in con tinuously operating presses. In forming the particular corner bead illustrated herein, arms are cut from the sides of a strip by means of suitable cutting dies. The stock is then fed forwardly one step and the ends of the arms are bent upwardly and while the armsare being cut and hunt. the center of the strip is ribbed to stifion it and to start the formation of the head proper. The lower die which cooperates with the corrcsponding upper die to form the rib constitutes the beginning of a center guide or support which extends through the nmchinc and becomes narrower toward the exit. The

Specification of Letters fittest.

strip is then iiilii. the nest stroke ot the head of the st? downwardly over ti support carrymg the 41 stock is then fed for at the next stroke of folded down at thei bent outward angle. other step and at press laterally ope toward each other to ill. the center guiding 511 time a hannner blow punch along the up as to straighten and start form the desired pro'tn. the bead proper. A strip stripping the stock iron. and a lifter is provided stock from the lower dies. Lateral ly movable grooved guides are i ought in to position at each stroke for gripping the edges 53 of the stock as it appr es the cutters. The same lifting plate whi 1 strips the stock from between the die cut also strips it clear of the lower angular dies which bend the arms upward. A pair of longitudinally extending shoes are spring pressed inwardly at opposite sides adjace t the lateral indenting dies for holding the stock at this point. \Vhen it is des d to provide lat eral reinforcing wires tn may be attached 9;) t0 the arms by curling over .he ends. In the form shown ta from the ends of the are.

* angst the center thorn. The other step and the arms are 1d their ends rw anrolte of the the structure and .ag shoulders of er is provided for 7 the upper cutter 'ripqing the strip. The wires aw guide tubes into of the arms at a point i yond the lateral operate are curled down and on. war

machine and the Lungs over the Wires The parts ar .-I aria-17mm? dies ma the purpose of repair and renewal and to permit of adjustment and substitution so that the machine is not limited to the production of a corner bead of the particular construction and dimensions shown.

While the machine as shown is designed to produce the finished article from the coii or plain strip of metal and coils of wire, and this is considered to be one of the great advantages of the invention, it should be understood however that certain advantages may be attained within the scope of the invention by performing the cutting operation in one machine and the bending opera tions in another machine. Similarly the bead may be otherwise completed in one machine and the wires attached in another ma chine.

Figure 1, is a side view of a machine em bodying the improvements of the invention. Fig. 2, is a. vertical section of the feeding out rolls. Fig. 3, is a view from the rear side of the ratchet mechanism for preventing the feeding-out rolls from rotating hacli- Ward. Fig. 4., is a side view of the reciproeating punch member carrying vetrically movable parts of the dies. This view and Figs. 5 and 6 are both taken from the side of the machine opposite to that shown in Fig. 1. Fig. 5, is a longitudinal sectional view showing parts of the relatively stationary die members in the position corresponding to Fig. 4. Fig. (3, is a ride view of the product showing the different steps of the ope 'ation between the parts of the die mechanism of Figs. 4 and 5 which have just acted. Fig. 7. is a view of the under side of the vertically movable punch mom-- ber. Fig. 8, is a plan view of the lower die members. Fig. 9, is a plan view of the product showing the dii'lcrcnt steps in their propel position relative to the dies in Figs. 7 and 8. Fig. 10, 1s a view of the under Side of one of'the upper die members con stituting a part of the punch cutter and arm bender. Fig. 11, is a plan view of a part of the stripper or lifter located between the lower die cutters and surrounding the lower arm bending dies. The positions of the parts in Figs. 7 to 11 inclusive correspond to the positions in Figs. 4 to (3 inclusively. Fig. 12, is a vertical sectional View on the plane of the line 1212 of Figs. 4, 5, 7 and 8 looking toward the right but on a larger scale andshowing the cutting and punching dies. Fig. 13, is a detail perspective view of one of the lower die cutters on a scale larger than Fig. 8 but smaller than Fig. 12. Fi". 14, is a perspective view of a Wedge for clamping the lower die cutters. Fig. 15. is a vertical sectional view on the plane of the line 15-15 in Figs. 4, 5, 7, and 8 looking toward the right and showing part of the arm bending dies and the lifter plate and ribbing dies. Figs. 12 and 15 to 22 inclusive are substantially full z-iize. tical sectional view on U 1616 of Figs. 4. dies for bending ri the strip downwar sectional view on the of Figs. T

bending the em ls ner recon mg ang; sectional view on the y straightening punch or die. similar secticiml .icw ho ting: closed in the forming o i i. a view taken from til" Figs. l, 5, T and 8 ha and showing the die to wires. Fig. i'l. pletion of the attach is a. view showing l rag. out rolls and the holduie bar.

The construction and opera haps be more dearly and I referring to the product which this irachine was particularly de 'gnod to term. This shown in Figs. c, 5/ and 2;. he front edge 30 or head proper, roumhzdwr jbullnosed. as it is sometimes tPlUHFti. The" arms 3]., 31 are arranged in rai" ted to the. head proper l) lug- 3- edges 3 .3 of the head pr per a ran. of the front edge so a" o i receiving shoulders at the r front nor am. llie has: 3} ol' tl folded over against the lugs. The side reinforcing wires are Free ends of the arms by means ol \1 hich are curled own. The oi" the arms also pi'el'einhl 37 somewhat, to fit the \viri made from a narrow st; p T1, in Suitable feeding-in rolls (1 at shown} are provided on the shafts 4D and. 41 which are geared together and operated in a nr 2r customary in automatic mach nes, for n.- stance, by a connecting rod 12 from an ain. dri ve. provided suitable manner by the shah; to a ternary in. reciprocating pr The stock is guided and grooved Wheels 52 at earl:

. are carried by a holder 5]. rcci rocatcd in a 1. The projecting J :1: extend dawn the M n 1 the (he member 90 1: wt w: ear tiu, rear cornms aLYEluH, A 1 (3.1-: luv-mixer 95 coiipemtes with wppmling die portions 56 and 57 to M has! of the arms downward and an: ends ontwumi, shmvn in Fig 17. w 1310. part, n( the groove 96 is shaped in: "mm :15 the upper part of mvraspmlds with the upuppnrfln guide die 56 p can Mu slightly *llumm x: mgngg the ases 25; of 1 I 1 flax-m againzat L110 lugs u 9m vans '93 P file l r K v in med will 8): im iums and bend nr 4: My wramst the inczimd The action of the die member 108 straightens out the bead and counteracts any tendency to warp or buckle. A pair of shoes 110 are shaped to fit the sides of the arms of the bead and assist in holding the bead in position While the sides are being indented as just described. Each shoe is ided by a pair of plunger-s 111 in the slide 102. A spring 112 presses against each plunger and tends to press it and its shoe inwardly toward the center of the machine. At the same time each spring presses outwardly against the slide and tends to hold the slide away from the center and retract it from the position shown in Fig. 19 to the osition shown in Fig. 13. The action 0 the mechanism thus far de cribed completes the bead except as to the longitudinal side reinforcing wires.

it will be noted that the rib forming dies act to rib up the central portion of the stock above the plane of the stock and that the side form ng dies carry the metal forming the sides of the head down below the plane of the stock. This action of forming up the bead by displacing the center and edges of the stock to opposite sides of the original flat plane of the stock facilitates movement through the machine without buckling of the stock.

in case the wires are to be used they may be attached as hereinafter briefly mentioned. The tangs 36 are formed by punches 115 carried by the vertically movable upper honler 51 and cooperate with the appropriately shaped die openings 11.6 in the cutter members it). The tunes are lifted from the die openings 110 by plungers 117 which are ca ried by the arms 118 attached to the lower stripper plate 72. The shape of the lower end of the punch cutter 115 is preferably such as to give a slight initial outward curl to the tip of the tang 36 as shown in Fig. 20. The lower inner walls 99 of the upper die member 95 are preferably raised at 119 to afford clearance for the tangs 36 as shown in Fig. 17. The wires 35 are guided into the machine in tubes 120 which extend through grooves 121 in the outer i'aees of the die members 60. beneath the litter plate 72. along side the guiding die 57 and are also inclined inwardly as shown in Fig. 8 to deliver the wires at the ends of the arms adjacentthe tangs at the right hand end of the machine as viewed in Figs. 4. 7. S, 20 and 21. Dies 122 are carried by the. laterally movable slides 102 for engaging the ends of the arms and the wires as shown in Fig. 21 when the slides move inwardly. The plungers 123 pivotally carried by the vertically movable holder 51 are drawn toward each other by a spring 124. The lower ends 125 are shaped so as to engage the tips of the tangs as the plunger-s 5 move downward from the position shown in Fig. 20. The continued downward movement causes the ends of the plungers 123 to slide down and out along the inclined walls 31 and curl over the tangs into position shown in Fig. 21. the die jaws-122 being in back of plungers 123 to hold the wires in position during the curling. These attach the wires to the arms of the bead. To more securely attach the wires and arms the delivery rolls 45 and 46 may be constructed and adjusted so as to relatively indent the ends of the arms and the tangs into the wires. For this purpose the rolls are provided with nurling grooves 128, 129 and the space between the rolls is adjusted to give the desired action. To hold the bead in its proper place between the rolls in the swaging action, a grooved holding bar 130 is provided which presses down against the edge of the bead and extends through a space between the rolls. In the absence of such a structure the swaging pressure is likely to force the bead out of place and produce irregular action.

While the machine as shown and described is adapted to the construction or the manufacture of a particular corner bead it should be understood that the invention is not considered as limited to the particular mechanism or combination and that these features and combinations of mechanism, the principles of which are herein illustrated, may be utilized in other ways and combinations and for the formation of other constructions. The wording of the claims is to be considered as of description rather than limitation except so far as required by the prior art.

What I claim is y 1. In a metal working machine, means for feedinga strip of metal. dies for cutting arms from said strip at opposite sides of the center, dies for bending the ends of the arms out of the plane of the strip. dies for ribbing the strip between the arms. dies for bending the arms, dies for bending the sides of the strip toward each other adjacent the ribbed edge. dies for attaching wire edge members and means for indenting portions of the ends of the arms into the wire edge members. said dies being brought into action consecutively.

2. In a metal working machine. means for feeding a strip of metal in. dies for cutting arms from said strip at opposite sides of the center. dies for bending the ends of the arms out of the plane of the strip, dies for ribbing the strip between the arms, dies for folding and bending intermediate portions of the arms. dies for indenting the sides of the strip toward each other adjacent the ribbed edge. means for attaching wire edge members, means for feeding out the product and means for bringing said dies into action consecutively.

rnaminews for he i.- in naming arr l hililS f the z nw -f iill the in; b Oi thfi the strip, dies for i i-tween the arms, and u ire edge members, i intn ii -lion eonsecln i arm-s i li bending in --.'i"'

"2e, strip pl iliillg wins, dies dilly, I said arms around siiir wires Ring llliikfl.

ine. strip for handing arms at i'lli -r m" the strip, and oi the arms to ,snrtai, dies for cutting --i oyniosite sides of ng the ends of the "n5 (t the strips, dies for we? were the arms. dies for :rn'i dies for bending the w wni'ard eaeh. iel' adjabring iies and dies ip. film, spared ridging a z-uncharm uniting dies in nut the arms t I m time ridge the i i in, the arr/is over .ms for til and indent irritral a, bead dew; for rally ea Hi1 mi means, for indenting intermediate i means for bendig maehine, means for 13. In a metal working machine, a central die. lateral shoes, springs for pressing said shoes toward the base of said die. laterally movable dies for forming the sides of a strip and a straightening die enacting therewith on the strip.

14-. in a metal working machine, means for intermittently feeding a strip of metal, a guide plate for supporting it along the renter, dies for bending the sides -of the strip downward over said guide plate, dies portions of the sides inward and a straightening die for engaging the folded edge. said dies being brought into action eouserutively.

15. In a metal working machine, means for intermittently feeding a strip of metal, a guide plate for supporting it along the center, dies for bending the sides of the strip downward over said guide plate and dies for indenting intermediate portions of the sides inward, said dies being brought into aetion consecutively.

16. In a metal working machine means for feeding a strip of metal, a gui e plate for supportin it along the center, dies for cutting the sides of the strip, dies for bend ing the sides of the strip downward over said guide plate, dies for bending interme diate portions of the sides inward nd a. straightening die for engaging the olded edge, said dies bein broil ht into action IlFi'FIlilYQly.

17. In a metal working machine, means for feeding a strip of metal, a guide plate for supporting it along the center, dies for rulting the sides of a strip, dies for bending the sides or" the strip downward over said guide plate and a straightening die for engaging the folded edge, said dies being brought into aetion consecutively.

18. In a metal working machine, means for inlemittently feedin a strip of metal, dies for cutting the si es of the strip, a guide plate for supporting the strip along the renter. dies for bending the sides of the strip downward over said guide plate, dies for bending intermediate portions of the sides inward and a die for engaging the folded edge, said dies .being brought into action ronsecutive y.

19. In a metal wor king machine, means i for llltt'fllnlttfllltly feeding a strip of metal, dies for eutting the sides of the strip, a guide plate for supporting the strip along the renter. dies for bending the sides of the strip downward over said guide plate and dies for bending intermediate portions of the sides inward. said dies being brought into :ution ennseeutively.

20, in a corner bead machine, means for feeding a strip of metal, a guide plate for supporting it along the center, dies for pnnehing the sides of the stri dies for bending parts of the sides of the strip s unssmw.

sins; guide plats, dies for tliportions of the sides n i g die for engaging the ibeing brought into ml machine, means for al, a guide plate for the center dies for of the strip, dies for the sides of the strip c plate, dies for ions of the sides die for engaging the i being brought into and means for feeding raking machine, intermit-- rig means, grooved guiding 1 pins p ble therein, up-

:t-eral arm cutting dies, 11. plate for stripping the lover cutting dies and a stock from the upper oping the working machine, intermeans, grooved guidins operable therein, l litlill'ttl arm cutting (lies,

plate for stripping the cr a plate g L" ill)? cut.

.. =.ova swinging mi lilting plate. znnchim, spaced plate ortween a: 'l cutibie h lder. a punch and pi'vafiicii dog cartor uunrintarily engag one * giiifl.- .d a punch cutter crzwg oiuli1 g to the vi". 1 aliecuthirsc wi -fi ing illntiilfle, a pair ill cntt having s n thin. adjacent migron one c-iji v ith its longiqnii: a horter angular its end vcpl nding to 28. In a metal working machine, laterally disposed arm cutters comprising two spaced die cutters having cutting edges for outlining the arms and interior tang cutting edges, a punch cutter having cutting edges cooperating with the arm cutting edges of. the die cutters, punches coacting with the tang cutting edges, a stripping plate extending adjacent the arm cutting edges of the die cutters and stripping rods carried by said plate and extending into said die cutters adjacent said tang cutting edges 29. In a metal working machine, arm bending dies having bending edges disposed at flaring angles, bending punches on opposite sldcs thereof, a stripper plate surround ing said bending dies and means for operating said stripper plate.

30. In a metal working machine, means for bending .rms out of the plane of a strip, means for bending the edges of the strip between the arms and means for folding the bases of the arms.

31. In a metal working machine, a center guiding die.v a vertically movable grooved bending dic coii 'icrating therewith and having depending bending lingers and being cut away :ul iu-cnt said fingers.

3:2. in a metal working machine, a central guiding die bar with outwardly inclined lower die aces and a vertically movable grooved die having depending sides with outwardly flaring extensions for engaging the edges of metal arms and folding the bases of the arms at the sides of the central guiding die bar and bending intermediate portions of the arms.

33 in a metal working machine, a supporting die having a central guide bar, laterally operable indenting jaws arranged to approach each other just above said guide bar and a die arranged to engage the stock while supported by said bar and engaged by said indenting jaws.

34. In a metal working machine, a central guide bar for grooved stock, means for feeding said grooved stock along the guide bar, laterally operable jaws, a vertically movable holder, a die ca rricd thereby above said bar, and. means carried by said holder for operating said jaws to contract the sides of the grooved stock above the guide bar when the holder and its die descend.

35. in metal working machine, a longitudinal support for the bead, laterally movable irc holding dies and vertically movable tang curling dies arranged to operate in conjunction with said support and said laterally movable dies to curl tangs from a herd on the support around wires held by the ire holding dies.

36, In a metal working machine, an inclined support, a movable grooved wire receiving die, a curling die and means for fi eiki: said curling die along the face of said support to curl a tang from an arm on 37. In a metal working machine, an inclined bead support, a lateral wire die and a pivoted vertically movable curling die and means for operatmg said dies and attachmg a wire to a ad.

38. In a metal working machine, a bead support, a vertically movable holder, a pair of curling dies carried thereby and lateral dies operated, by said ,holder in conjunction the with said curling dies.

39. In a metal working machine, means for cutting arms from a strip and slightly curlin the ends of the arms and means for attaching the slightly curled ends of the arms to a reinforci wire.

40. In a metal wor ing machine, a pair of setting rolls having oppositely located knurled grooves and a holding bar extending between said rolls for engaging the edge of 'a bead to thereby hold the arms of the bead and side wires of the bead in the knurled grooves.

41. In a corner bead machine the combination of'a series of dies for successively acting upon a stri to progressively form it into the desired shape and comprising dies for forming an arched rib along the center of the strip of metal, dies for fiattening the top of the, arch and bending the sides ofthe arch squarely away from the top, dies for gradually flaring the edges of strip and dies for indenting the sides between the top and the edges and simultaneously again arching the top.

42. In'a corner bead machine, the combination of a series of dies for successively acting upon a strip to progressively form it into the desired shape, comprising a plurality of dies for gradually forming a central rib with a flat top and square edges, dies for gradually bending the edges of the strip toward each other and dies for gradually indenting the sides adjacent the edges of the rib and arching the center of the rib.

43. In a corner bead machine, the com bination of a series of sets of dies arranged successively to progressively form the bead from a strip and comprising coacting tongue and grooved dies for ribbing the center of the strip, coacting bending dies having oppositely inclined faces at opposite sides of the center for flaring the edges of the strip, laterally operating dies having ribs for contracting the sides of the strip ifild support around a wire in said grooved at each side of the center and coacting grooved dies for shaping the center as desired.

44. In a corner bead machine,the combination of a series of dies successively acting upon a strip), comprising dies for forming a central r1 dies for cutting the strip on each side of the central rib, dies for then bending the sidesinclined in o posite directions from the center and dies or then completing the formation of the central rib into the bead proper.

45. In a corner bead machine, the combination of a series of dies arranged to receive a strip, progressively rib it along the center and e tions, the line of the centers 0 the "successive dies departing from one face of the original plane of the stock and the edges of the said successive dies gradually departing from the opposite face of the original plane of the stock, said dies comprising dies for ribbing the center of the strip, dies forbending the edges and dies for contracting the sides adjacent the central rib.

46. In a corner bead machine, the combination of dies for cutting the sides of the strip to form openings, dies for bending said sides to form the central ortion of said strip into a nose and latera ly operating movable dies for contracting the sides at a point adjacent the nose thereof to thereby form the said nose into an undercut bead.

47. In a corner bead machine, coacting upper and lower dies, one of said dies projecting part Way in between the folded sides of a strip and the other of said dies engaging the folded center of the strip, laterally movable dies engaging unsupported portions of the sides of the folded strip between the aforesaid upper and lower dies to thereby contract the sides of the bead back of the folded center thereof, and means for causing said dies to simultaneously coact upon the bead.

48. In a corner bead machine, spaced apart rolls grooved to receive the edges of a strip therebetween to center the strip, means for bending the central portion of the strip guided by said rolls into a bead, and means for bending portions on opposite sides of the central portion of the strip on divergent angles. 7

NORRIS ELMQRE CLARK.

\Vitnesses:

D. G. CLARK, E. E. Dun-ms.

nd the sides in op osite' direc- 

